The types of pipe joint include end straight joint, straight joint, tee joint, elbow, joint with live nut, hinged joint, plug, transition joint, etc.
NPT, Pt and G are all pipe threads. NPT is the abbreviation of national pipe thread, which belongs to 60 degree taper pipe thread of American Standard, and is used in North America. Refer to GB / t12716-1991pt is pipe thread Thread is the abbreviation of 55 degree sealed tapered pipe thread. It belongs to Wyeth thread family and is mostly used in Europe and the British Commonwealth. It is commonly used in water and gas pipe industry, and the taper is 1:16. Refer to GB / t7306-2000 for national standard
G is a 55 degree non threaded sealed pipe thread, belonging to Wyeth thread family. The mark g represents cylindrical thread. The standard can be consulted in GB / t7307-200. In addition, the 1 / 4, 1 / 2 and 1 / 8 marks in the thread refer to the diameter of the thread size, and the unit is inch. Insiders usually call the thread size by minute. One inch is equal to 8 points, and 1 / 4 inch is 2 points.
And so on. G is the general name of pipe thread. The division of 55 and 60 degrees belongs to functional, commonly known as pipe circle. That is, the thread is made of a cylindrical surface. ZG is commonly known as pipe cone, that is, the thread is made of a round cone surface. The general water pipe joints are like this. The old domestic thread mark is RC The external thread is r, the metric thread is represented by pitch, and the American British thread is represented by the number of threads per inch. This is a bigger difference between them. The metric thread is 60 degree equilateral profile, the British thread is 55 degree isosceles profile, and the American thread is 60 degree. Metric screw thread uses metric unit, American and British screw thread uses English unit.
Pipe thread is mainly used for pipe connection, and its internal and external threads are closely matched, including straight pipe and tapered pipe. The nominal diameter refers to the diameter of the pipe to be connected. Obviously, the major diameter of the thread is larger than the nominal diameter. 1 / 4, 1 / 2, and 1 / 8 are nominal diameters of inch threads in inches.
The pipe joint produced by Jiangsu Jinluo New Material Technology Co., Ltd. is of new design, fast installation and no slippage. The company mainly deals in technology research and development, technology transfer in the field of polymer hose and thermoplastic composite reinforced pipe, processing, manufacturing and sales of semi-finished polymer hose, polymer coated tape, polymer soft container and thermoplastic composite reinforced pipe Manufacturing and sales, remote water supply pipeline design and construction, pipe joints, fire equipment sales; general machinery and equipment manufacturing and sales, rubber and plastic products sales, self-management and agent of all kinds of goods and technology import and export business.